Exercise 10b а. с(3); 2.05 b. с(3); b 1.02 с. с(180); 3.25 d. c(180); 1.86

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed

b). 4320 have a nice day